/* ========================================
   TrackXpert Admin v2 - Modern CSS
   ======================================== */

/* ========== CSS Variables ========== */
:root {
    /* Colors - Light Theme */
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #eef2ff;
    
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;
    
    /* Background & Surface */
    --bg-primary: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f1f5f9;
    
    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Border */
    --border-color: #e2e8f0;
    --border-color-dark: #cbd5e1;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* Dark Theme */
.dark {
    --bg-primary: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-hover: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border-color: #334155;
    --border-color-dark: #475569;
    
    --color-primary-light: #312e81;
    --color-success-light: #064e3b;
    --color-warning-light: #78350f;
    --color-danger-light: #7f1d1d;
    --color-info-light: #1e3a8a;
}

/* ========== Base Styles ========== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

/* ========== Utilities ========== */
.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========== Animations ========== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
    20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.animate-fade-in { animation: fadeIn 0.3s ease-out; }
.animate-slide-in { animation: slideIn 0.3s ease-out; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-shake { animation: shake 0.5s ease-in-out; }

/* ========== Auth Screen ========== */
.auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    position: relative;
    background: radial-gradient(1200px 600px at 10% 10%, rgba(79, 70, 229, 0.15), transparent 60%),
                radial-gradient(1000px 500px at 90% 20%, rgba(16, 185, 129, 0.12), transparent 55%),
                var(--bg-primary);
}

.auth-backdrop {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.0), rgba(255,255,255,0.6));
    pointer-events: none;
}

.auth-shell {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 960px;
}

.auth-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.auth-side {
    padding: 40px;
    background: linear-gradient(160deg, rgba(79, 70, 229, 0.08), rgba(79, 70, 229, 0.02));
    border-right: 1px solid var(--border-color);
}

.auth-logo {
    height: 38px;
    margin-bottom: 20px;
}

.auth-side h1 {
    margin: 0 0 8px 0;
    font-size: 28px;
    color: var(--text-primary);
}

.auth-side p {
    margin: 0 0 18px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 13px;
}

.auth-badges span i {
    margin-right: 8px;
    color: var(--color-primary);
}

.auth-form {
    padding: 40px;
}

.auth-header h2 {
    margin: 0 0 6px 0;
    font-size: 22px;
    color: var(--text-primary);
}

.auth-header p {
    margin: 0 0 20px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-footer {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 18px;
    font-size: 12px;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 900px) {
    .auth-card {
        grid-template-columns: 1fr;
    }
    .auth-side {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-1000 { animation-delay: 1000ms; }

/* ========== Navigation Items ========== */
.nav-item,
.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
}

.nav-item:hover,
.nav-link:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.nav-item.active,
.nav-link.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-link.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.dark .nav-item.active,
.dark .nav-link.active {
    background-color: rgba(79, 70, 229, 0.2);
    color: #818cf8;
}

/* ========== Cards ========== */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-surface-hover);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25rem;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}

.btn-secondary {
    background-color: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-surface-hover);
    border-color: var(--border-color-dark);
}

.btn-success {
    background-color: var(--color-success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.625rem;
}

/* ========== Dropdown ========== */
.dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--bg-surface-hover);
}

.dropdown-item:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.dropdown-item:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ========== Form Elements ========== */
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.input,
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.input:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.input:disabled,
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: var(--bg-surface-hover);
    cursor: not-allowed;
    opacity: 0.7;
}

.input.error,
.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--color-danger);
}

.input.error:focus,
.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-checkbox {
    width: 1rem;
    height: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.form-checkbox:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* ========== Tables ========== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background-color: var(--bg-surface-hover);
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

.table-clickable tbody tr {
    cursor: pointer;
}

/* Compact Table Variant - reduced vertical padding */
.table.table-compact th {
    padding: 0.5rem 0.75rem;
}

.table.table-compact td {
    padding: 0.5rem 0.75rem;
}

/* ========== Badges ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-primary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-info {
    background-color: var(--color-info-light);
    color: var(--color-info);
}

.badge-neutral {
    background-color: var(--bg-surface-hover);
    color: var(--text-secondary);
}

/* ========== Stats Cards ========== */
.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-change {
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.stat-change.positive { color: var(--color-success); }
.stat-change.negative { color: var(--color-danger); }

/* ========== Avatar ========== */
.avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 100%);
    color: white;
}

.avatar-sm {
    width: 2rem;
    height: 2rem;
    font-size: 0.75rem;
}

.avatar-lg {
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
}

.avatar-xl {
    width: 4rem;
    height: 4rem;
    font-size: 1.25rem;
}

.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    margin-left: -0.5rem;
    border: 2px solid var(--bg-surface);
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

/* ========== Progress Bar ========== */
.progress {
    height: 0.5rem;
    background-color: var(--bg-surface-hover);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.progress-bar-primary { background-color: var(--color-primary); }
.progress-bar-success { background-color: var(--color-success); }
.progress-bar-warning { background-color: var(--color-warning); }
.progress-bar-danger { background-color: var(--color-danger); }

/* ========== Toast Notifications ========== */
.toast {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 24rem;
    animation: slideIn 0.3s ease-out;
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-info); }

.toast-icon {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.toast-message {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 0.125rem;
}

.toast-close {
    flex-shrink: 0;
    padding: 0.25rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ========== Dropdown ========== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 50;
    min-width: 12rem;
    margin-top: 0.5rem;
    padding: 0.5rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--bg-surface-hover);
}

.dropdown-item i {
    font-size: 1.125rem;
    color: var(--text-muted);
}

.dropdown-divider {
    height: 1px;
    margin: 0.5rem 0;
    background-color: var(--border-color);
}

/* ========== Modal ========== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 32rem;
    max-height: calc(100vh - 2rem);
    background-color: var(--bg-surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: fadeIn 0.2s ease-out;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    padding: 0.5rem;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(100vh - 12rem);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-surface-hover);
    border-top: 1px solid var(--border-color);
}

.modal-lg .modal-content {
    max-width: 48rem;
}

.modal-xl .modal-content {
    max-width: 64rem;
}

/* ========== Tabs ========== */
.tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.25rem;
    background-color: var(--bg-surface-hover);
    border-radius: var(--radius-lg);
}

.tab-item {
    flex: 1;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-item:hover {
    color: var(--text-primary);
}

.tab-item.active {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* Tab Buttons (line style) */
.tab-btn {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: none;
    background: none;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--color-primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px 2px 0 0;
}

/* Tab Content */
.tab-content {
    animation: fadeIn 0.2s ease-out;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    color: var(--text-muted);
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state-description {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 24rem;
    margin: 0 auto 1.5rem;
}

/* ========== Skeleton Loading ========== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-surface-hover) 25%, var(--border-color) 50%, var(--bg-surface-hover) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1rem;
    width: 100%;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
}

.skeleton-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
}

/* ========== Responsive Utilities ========== */
@media (max-width: 640px) {
    .sm\:hidden { display: none !important; }
}

@media (min-width: 640px) {
    .sm\:flex { display: flex !important; }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-dark);
}

/* ========== Print Styles ========== */
@media print {
    #sidebar, header, .no-print {
        display: none !important;
    }
    
    main {
        margin: 0 !important;
    }
}
/* ========== Tailwind-like Utilities ========== */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.block { display: block; }
.inline-block { display: inline-block; }

.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.flex-shrink-0 { flex-shrink: 0; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

.p-0 { padding: 0; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.pt-4 { padding-top: 1rem; }
.pb-4 { padding-bottom: 1rem; }
.pl-10 { padding-left: 2.5rem; }
.pr-4 { padding-right: 1rem; }
.pr-10 { padding-right: 2.5rem; }

.m-0 { margin: 0; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-4 { margin-left: 1rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-7 { width: 1.75rem; }
.w-8 { width: 2rem; }
.w-10 { width: 2.5rem; }
.w-11 { width: 2.75rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-full { width: 100%; }
.w-auto { width: auto; }
.min-w-0 { min-width: 0; }
.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }

.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-7 { height: 1.75rem; }
.h-8 { height: 2rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }
.max-h-40 { max-height: 10rem; }
.max-h-64 { max-height: 16rem; }

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-6xl { font-size: 3.75rem; line-height: 1; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-mono { font-family: ui-monospace, monospace; }

.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.text-white { color: white; }
.text-slate-300 { color: #cbd5e1; }
.text-slate-400 { color: #94a3b8; }
.text-slate-500 { color: #64748b; }
.text-slate-600 { color: #475569; }
.text-slate-800 { color: #1e293b; }
.text-indigo-600 { color: #4f46e5; }
.text-indigo-800 { color: #3730a3; }
.text-emerald-500 { color: #10b981; }
.text-emerald-600 { color: #059669; }
.text-amber-600 { color: #d97706; }
.text-red-300 { color: #fca5a5; }
.text-red-400 { color: #f87171; }
.text-red-500 { color: #ef4444; }
.text-red-600 { color: #dc2626; }
.text-red-700 { color: #b91c1c; }
.text-blue-500 { color: #3b82f6; }
.text-blue-600 { color: #2563eb; }
.text-green-500 { color: #22c55e; }
.text-rose-600 { color: #e11d48; }

.bg-white { background-color: white; }
.bg-slate-50 { background-color: #f8fafc; }
.bg-slate-100 { background-color: #f1f5f9; }
.bg-indigo-50 { background-color: #eef2ff; }
.bg-indigo-100 { background-color: #e0e7ff; }
.bg-indigo-600 { background-color: #4f46e5; }
.bg-emerald-50 { background-color: #ecfdf5; }
.bg-emerald-100 { background-color: #d1fae5; }
.bg-amber-50 { background-color: #fffbeb; }
.bg-amber-100 { background-color: #fef3c7; }
.bg-rose-50 { background-color: #fff1f2; }
.bg-rose-100 { background-color: #ffe4e6; }
.bg-red-50 { background-color: #fef2f2; }
.bg-red-600 { background-color: #dc2626; }

.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-t { border-top-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-slate-100 { border-color: #f1f5f9; }
.border-slate-200 { border-color: #e2e8f0; }
.border-slate-300 { border-color: #cbd5e1; }
.border-red-200 { border-color: #fecaca; }
.border-indigo-200 { border-color: #c7d2fe; }
.border-indigo-600 { border-color: #4f46e5; }
.border-transparent { border-color: transparent; }
.border-t-transparent { border-top-color: transparent; }
.border-t-indigo-600 { border-top-color: #4f46e5; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.shadow-sm { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25); }

.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.top-1 { top: 0.25rem; }
.right-1 { right: 0.25rem; }
.right-3 { right: 0.75rem; }
.right-4 { right: 1rem; }
.bottom-0 { bottom: 0; }
.bottom-4 { bottom: 1rem; }
.left-0 { left: 0; }
.left-3 { left: 0.75rem; }

.z-10 { z-index: 10; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

.cursor-pointer { cursor: pointer; }
.transition-colors { transition-property: color, background-color, border-color; transition-duration: 150ms; }
.transition-all { transition-property: all; transition-duration: 150ms; }

.divide-y > * + * { border-top-width: 1px; }
.divide-slate-100 > * + * { border-color: #f1f5f9; }

.opacity-0 { opacity: 0; }

.transform { transform: translateX(var(--tw-translate-x, 0)) translateY(var(--tw-translate-y, 0)); }
.-translate-x-full { --tw-translate-x: -100%; transform: translateX(-100%); }
.-translate-y-1\/2 { --tw-translate-y: -50%; transform: translateY(-50%); }
.translate-x-full { --tw-translate-x: 100%; transform: translateX(100%); }

.hover\:bg-slate-50:hover { background-color: #f8fafc; }
.hover\:bg-slate-100:hover { background-color: #f1f5f9; }
.hover\:bg-indigo-700:hover { background-color: #4338ca; }
.hover\:bg-red-50:hover { background-color: #fef2f2; }
.hover\:bg-red-700:hover { background-color: #b91c1c; }
.hover\:text-indigo-600:hover { color: #4f46e5; }
.hover\:text-indigo-800:hover { color: #3730a3; }
.hover\:text-red-700:hover { color: #b91c1c; }
.hover\:text-slate-600:hover { color: #475569; }
.hover\:underline:hover { text-decoration: underline; }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1); }
.hover\:ring-2:hover { box-shadow: 0 0 0 2px var(--ring-color, #4f46e5); }

.focus\:outline-none:focus { outline: none; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--ring-color, #4f46e5); }
.focus\:ring-indigo-500:focus { --ring-color: #6366f1; }

.group:hover .group-hover\:opacity-100 { opacity: 1; }
.group:hover .group-hover\:text-indigo-600 { color: #4f46e5; }

/* Dark mode utilities */
.dark .dark\:bg-slate-700 { background-color: #334155; }
.dark .dark\:bg-slate-800 { background-color: #1e293b; }
.dark .dark\:bg-slate-900 { background-color: #0f172a; }
.dark .dark\:bg-indigo-900\/30 { background-color: rgba(49, 46, 129, 0.3); }
.dark .dark\:bg-emerald-900\/30 { background-color: rgba(6, 78, 59, 0.3); }
.dark .dark\:bg-amber-900\/30 { background-color: rgba(120, 53, 15, 0.3); }
.dark .dark\:bg-rose-900\/30 { background-color: rgba(136, 19, 55, 0.3); }
.dark .dark\:text-white { color: white; }
.dark .dark\:text-slate-200 { color: #e2e8f0; }
.dark .dark\:text-slate-300 { color: #cbd5e1; }
.dark .dark\:text-slate-400 { color: #94a3b8; }
.dark .dark\:text-indigo-300 { color: #a5b4fc; }
.dark .dark\:text-indigo-400 { color: #818cf8; }
.dark .dark\:text-emerald-300 { color: #6ee7b7; }
.dark .dark\:text-emerald-400 { color: #34d399; }
.dark .dark\:text-amber-300 { color: #fcd34d; }
.dark .dark\:text-red-400 { color: #f87171; }
.dark .dark\:border-slate-600 { border-color: #475569; }
.dark .dark\:border-slate-700 { border-color: #334155; }
.dark .dark\:border-red-800 { border-color: #991b1b; }
.dark .dark\:hover\:bg-slate-600:hover { background-color: #475569; }
.dark .dark\:hover\:bg-slate-700:hover { background-color: #334155; }
.dark .dark\:hover\:bg-slate-800\/50:hover { background-color: rgba(30, 41, 59, 0.5); }
.dark .dark\:hover\:bg-indigo-900\/10:hover { background-color: rgba(49, 46, 129, 0.1); }
.dark .dark\:hover\:text-indigo-400:hover { color: #818cf8; }
.dark .dark\:focus\:ring-indigo-800:focus { --ring-color: #3730a3; }

/* Column utilities */
.col-span-full { grid-column: 1 / -1; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .md\:flex-row { flex-direction: row; }
    .md\:items-center { align-items: center; }
    .md\:w-48 { width: 12rem; }
    .md\:w-64 { width: 16rem; }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:ml-64 { margin-left: 16rem; }
    .lg\:translate-x-0 { transform: translateX(0); }
    .lg\:hidden { display: none; }
    .lg\:p-6 { padding: 1.5rem; }
    .lg\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

/* Gradient utilities */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-slate-900 { --tw-gradient-from: #0f172a; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.from-indigo-500 { --tw-gradient-from: #6366f1; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.from-indigo-600 { --tw-gradient-from: #4f46e5; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.from-emerald-500 { --tw-gradient-from: #10b981; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.from-amber-500 { --tw-gradient-from: #f59e0b; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.from-rose-500 { --tw-gradient-from: #f43f5e; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.via-indigo-950 { --tw-gradient-stops: var(--tw-gradient-from), #1e1b4b, var(--tw-gradient-to, transparent); }
.to-slate-900 { --tw-gradient-to: #0f172a; }
.to-purple-600 { --tw-gradient-to: #9333ea; }
.to-blue-500 { --tw-gradient-to: #3b82f6; }
.to-blue-600 { --tw-gradient-to: #2563eb; }
.to-indigo-600 { --tw-gradient-to: #4f46e5; }
.to-emerald-600 { --tw-gradient-to: #059669; }
.to-amber-600 { --tw-gradient-to: #d97706; }
.to-rose-600 { --tw-gradient-to: #e11d48; }

/* Glass/blur utilities */
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.backdrop-blur-xl { backdrop-filter: blur(24px); }
.blur-3xl { filter: blur(64px); }

/* ========== Sidebar Fixed Width ========== */
#sidebar {
    width: 16rem; /* 256px fixed width */
    min-width: 16rem;
    max-width: 16rem;
}

/* Client Switcher - fixed width with text truncation */
#client-switcher-container {
    width: 100%;
    overflow: visible;
    position: relative;
    z-index: 200;
}

#client-multi {
    position: relative;
    z-index: 200;
}

#current-client-name,
#single-client-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

/* Dropdown expands beyond sidebar when open */
#client-dropdown {
    position: absolute;
    left: 0;
    min-width: 100%;
    width: max-content;
    max-width: 350px;
    z-index: 9999;
}

#client-dropdown .dropdown-item {
    white-space: normal;
    word-break: break-word;
}

/* Navigation must be below dropdown */
#sidebar nav {
    position: relative;
    z-index: 1;
}

/* Ensure main content is not covered */
main.lg\:ml-64 {
    margin-left: 16rem;
}

@media (max-width: 1023px) {
    main.lg\:ml-64 {
        margin-left: 0;
    }
}

/* ========== Trial Banner ========== */
.trial-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 20px;
    margin-bottom: 16px;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    animation: fadeIn 0.3s ease-out;
}

.trial-banner-active {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.trial-banner-expiring {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1px solid #fcd34d;
    color: #92400e;
}

.trial-banner-expired {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border: 1px solid #fca5a5;
    color: #991b1b;
}

.trial-banner-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.trial-banner-text {
    flex: 1;
    line-height: 1.5;
}

.trial-banner-text strong {
    font-weight: 700;
}

.trial-banner-dismiss {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    opacity: 0.5;
    transition: opacity 0.2s;
    padding: 4px;
    line-height: 1;
}

.trial-banner-dismiss:hover {
    opacity: 1;
}

/* ========== Customer List Styles ========== */
.customer-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.customer-table thead th {
    padding: 12px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    text-align: left;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.customer-table tbody td {
    padding: 14px 16px;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.customer-table tbody tr {
    transition: background-color var(--transition-fast);
}

.customer-table tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

.customer-table tbody tr:last-child td {
    border-bottom: none;
}

.trial-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.trial-badge-active {
    background-color: #d1fae5;
    color: #065f46;
}

.dark .trial-badge-active {
    background-color: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

.trial-badge-expiring {
    background-color: #fef3c7;
    color: #92400e;
}

.dark .trial-badge-expiring {
    background-color: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

.trial-badge-expired {
    background-color: #fee2e2;
    color: #991b1b;
}

.dark .trial-badge-expired {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.trial-badge-none {
    background-color: #e2e8f0;
    color: #475569;
}

.dark .trial-badge-none {
    background-color: rgba(100, 116, 139, 0.2);
    color: #94a3b8;
}

.customer-name-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.customer-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: white;
    flex-shrink: 0;
}

.customer-name-info {
    min-width: 0;
}

.customer-name-info .name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.customer-name-info .email {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.trial-edit-input {
    width: 140px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-surface);
    transition: border-color var(--transition-fast);
}

.trial-edit-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

.dark .trial-edit-input {
    background: var(--bg-surface-hover);
    border-color: var(--border-color-dark);
    color: var(--text-primary);
}

.stats-mini {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
}

.stat-mini-card {
    flex: 1;
    padding: 16px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
}

.stat-mini-card .stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-mini-card .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
}